They're completely different scenarios. Commuting is usually one-directional towards the center of the city and business areas with the working population.
Evacuation is outward to completely leave the city, and includes everyone and their luggage, while being squeezed through suburban areas to just a few interstate highways.
Yes, but planning to make sure commuting and evacuation patterns identical would make the city sufficiently distributed. You would obliterate the CBD problem which causes rushed congestion in roadways. You would just need to go further to evacuate such a city.
Evacuation is outward to completely leave the city, and includes everyone and their luggage, while being squeezed through suburban areas to just a few interstate highways.